Display panel or portion thereof with graphical user interface



FIGURE is a front view of a display panel or portion thereof with graphical user interface, showing my new design.

The two outermost broken lines depict a display panel or portion thereof and form no part of the claimed design. The remaining broken lines illustrate portions of the graphical user interface that form no part of the claimed design. 

CLAIM The ornamental design for a display panel or portion thereof with graphical user interface, as shown and described. 